Update to autograph 3.2.0

Fixes #11414

.travis.yml

@@ -71,7 +71,7 @@ script:
   - |
     if [[ $TRAVIS_EVENT_TYPE != "cron" ]]; then
       if [[ $TOXENV == "amo-lib-locales-and-signing" ]]; then
-         docker run --name autograph -d -p 5500:5500 -v $(pwd)/scripts/:/scripts/ mozilla/autograph:2.7.0 /go/bin/autograph -c /scripts/autograph_travis_test_config.yaml
+         docker run --name autograph -d -p 5500:5500 -v $(pwd)/scripts/:/scripts/ mozilla/autograph:3.2.0 /go/bin/autograph -c /scripts/autograph_travis_test_config.yaml
       fi
       RUNNING_IN_CI=True tox
     fi

docker-compose.yml

@@ -82,7 +82,7 @@ services:
       - RABBITMQ_DEFAULT_VHOST=olympia
 
   autograph:
-    image: mozilla/autograph:2.7.0
+    image: mozilla/autograph:3.2.0
 
   addons-frontend:
     <<: *env